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  1. #include <iostream>
  2. #include <sstream>
  3. #include <iomanip>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9.     double a = 157.2734;
  10.     cout << "This number is " << fixed << setprecision(1) << a << "." << endl;
  11.     ostringstream fmtStr;
  12.     fmtStr << "This number is " << fixed << setprecision(1) << a << ".\n";
  13.     string line = fmtStr.str();
  14.     cout << line;
  15.     return 0;
  16. }
Success #stdin #stdout 0s 4520KB
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Standard input is empty
stdout
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This number is 157.3.
This number is 157.3.
https://ideone.com/rfT9UA
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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